Publications by authors named "Cesar Hernandez-Guerrero"

Dietary fats influence gene expression and several metabolic pathways. Therefore, it is crucial to study the role of personal genotypes in the interaction between fat consumption and cardiometabolic markers. This research aimed to determine the interaction of the rs708272 polymorphism of and the fatty acid intake with changes in the HOMA-IR in adults living with overweight or obesity.

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  • The study explored the relationship between specific genetic variations (SNPs) and obesity, involving 396 obese Mexican mestizo individuals and 142 individuals with normal weight.
  • While most SNPs showed no significant link to obesity, the T allele of one SNP was associated with increased obesity risk.
  • The research also found that genetic risk scores interact with waist-to-hip ratio, affecting LDL cholesterol levels, highlighting the importance of considering both genetics and body composition in addressing cardiovascular health.
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  • Early marijuana use can lead to long-term cognitive impairment, but the specific causes and persistence of these effects remain unclear.
  • Researchers tested the effects of anandamide, a cannabinoid, on developing rats to better understand its impact on learning and cognitive function.
  • Results showed that rats treated with anandamide experienced learning difficulties and altered gene expression related to NMDA receptors, indicating negative effects on cognitive development.
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Background: Endometriosis is an estrogen-dependent and chronic inflammatory disease affecting up to 10% of women. It is the result of a combined interaction of genetic, epigenetic, environmental, lifestyle, reproductive and local inflammatory factors. In this study, we investigated whether single nucleotide polymorphisms (SNPs) mapping to TNF-alpha (TNF, rs1800629) and IL-1beta (IL1B, rs1143634) and variable number tandem repeat polymorphism mapping to IL1-Ra (IL1RN intron 2, rs2234663) genetic loci are associated with risk for endometriosis in a Mexican mestizo population.

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Obesity is a multifactorial disease resulting in excessive accumulation of fat. Worldwide, obesity is an important public health problem, affecting a large proportion of the world population. The tender cactus , commonly known in Mexico as "nopal", is widely distributed in this country, Latin America, South Africa, and the Mediterranean area.

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The present article provides a guide for the conduction and analysis of three conditioning-based protocols to evaluate impulsivity in rats. Impulsivity is a meaningful concept because it is associated with psychiatric conditions in humans and with maladaptive behavior in non-human animals. It is believed that impulsivity is composed of separate factors.

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Background: In behavioral neuroscience studies, it is essential to accurately and easily record rodent sexual behavior. However, current systems are complex, expensive and often require a computer that hinders their use in situ.

New Method: SEXRAT MALE is new software for the real-time annotation and process of live sexual behavior in male rodents.

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Obesity is an excessive fat accumulation that could lead to complications like metabolic syndrome. There are reports on gut microbiota and metabolic syndrome in relation to dietary, host genetics, and other environmental factors; however, it is necessary to explore the role of the gut microbiota metabolic pathways in populations like Mexicans, where the prevalence of obesity and metabolic syndrome is high. This study identify alterations of the gut microbiota in a sample of healthy Mexican women (CO), women with obesity (OB), and women with obesity plus metabolic syndrome (OMS).

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Obesity is a metabolic disease characterized by low-grade inflammation and accompanied by dyslipidemia and up-regulation of other bioactive molecules, creating a predisposition to endothelial dysfunction and metabolic syndrome. We studied the association between gut microbiota diversity and endothelial dysfunction (EDF) markers in obese Mexican children and adolescents. We examined clinical data including metabolic factors and EDF markers in blood samples.

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Introduction: antioxidants play an important role in the antioxidant defense system. Obesity and the aging process increase oxidative stress. The disruption of the oxidant-antioxidant balance towards oxidant condition could be related to cognitive and physical disabilities.

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Background: It has been proposed that abnormal modulation of inflammatory response is involved in the physiopathology of idiopathic recurrent spontaneous abortion (iRSA). Factors that may participate in this process include the genetic background such as carrying specific polymorphisms of genes with functional effects.

Objective: The objective is to study the association between iRSA and the frequency of intron-2 variable number tandem repeat-polymorphisms of interleukin-1 receptor antagonist gene (IL1RN).

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  • * Participants were divided into two genetic groups: carriers of mutated genes (CR) and those with normal genes (WT), and significant differences in clinical, biochemical, and anthropometric variables were observed after the intervention.
  • * Results indicated that certain genetic polymorphisms led to different responses in health markers like BMI and cholesterol levels, highlighting the role of genetics in individual dietary responses in obesity.
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  • Oxidative stress is linked to obesity-related issues, and specific genetic variations (SNPs) in antioxidant enzymes like SOD1 and CAT may influence obesity-related health outcomes.
  • A study involving 416 Mexican women found that those with obesity had significantly higher rates of the SOD1 -251A>G genetic variant compared to normal-weight individuals.
  • The presence of certain genetic mutations was associated with increased body fat, visceral fat, and higher blood pressure in obese participants, suggesting a connection between these SNPs and obesity severity.
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Introduction: obesity affects more than a third of Mexican population. Oxidative stress participates actively in the etiology of this phenomenon. Glutathione peroxidase-1 (GPX-1) plays a protective role against oxidative stress.

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  • Oxidative stress contributes to obesity-related health issues, and the MTHFR enzyme, influenced by its C677T genetic variant, may play a role in this process by affecting folate metabolism and homocysteine levels.
  • The study aimed to assess the frequency of the C677T SNP in the MTHFR gene, evaluate the intake of vitamins B6, B9, and B12, and measure lipid hydroperoxide levels in obese and non-obese individuals.
  • Findings indicated no significant difference in the C677T variation or vitamin consumption between normal-weight and obese groups, but there was a notable increase in lipid hydroperoxide levels in the obese group, highlighting oxidative stress across obesity levels.
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Objective: To compare the production of pro- and anti-inflammatory cytokines by whole blood samples stimulated with lipopolysaccharide from normotensive and preeclamptic women.

Methods: The synthesis of tumor necrosis factor-α, interleukyn-1β, interleukin-6 and interleukin-10 were assayed by immunosorbent assays in 56 and 50 preeclamptic and normotensive women, respectively.

Results: Preeclamptic women showed a higher synthesis (p < 0.

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  • The study aims to compare different predictive formulas for calculating resting energy expenditure (REE) against indirect calorimetry in Mexican women with varying grades of obesity (I to III).
  • Findings indicate that the Harris-Benedict, World Health Organization, and Valencia formulas provided REE estimates with good accuracy (around 63-67%), while other formulas like Mifflin and Institute of Medicine had lower accuracy (53-58%).
  • For women with grade III obesity, the Valencia and "Formula Rápida" had the highest accuracy in estimating REE, making them more reliable options for this demographic.
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Using a murine model, we evaluated the growth of ectopic endometrial tissue in the presence of T helper 1 (Th1) or Th2 cytokines or a nitric oxide donor (S-nitroso-N-acetyl-penicillamine [SNAP]). Female mice were autografted with endometrial tissue in the peritoneum. Different combinations and concentrations of cytokines or SNAP were injected intraperitoneally for 8 weeks.

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Objective: To identify the microbiota communities in the vaginal tracts of healthy Mexican women across the pregnancy.

Methods: Vaginal swabs were obtained during the prenatal visit of women from all trimesters (n = 64) of healthy pregnant women of Mexico City. DNA was isolated from each sample, and PCR-DGGE and sequencing of 16S rRNA gene fragments were used to identify the bacterial communities.

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Objectives: To assess immunological variables, T-cell apoptosis and oxidative stress markers in the peripheral blood and peritoneal fluid of women with (WEN) and without (WWE) endometriosis.

Design: Observational and transverse case-control study.

Setting: National Institute of Perinatology, Mexico City, Mexico.

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Background: Oxidative stress has been identified in the peritoneal fluid and peripheral blood of women with endometriosis. However, there is little information on the antioxidant intake for this group of women. The objectives of this work were 1) to compare the antioxidant intake among women with and without endometriosis and 2) to design and apply a high antioxidant diet to evaluate its capacity to reduce oxidative stress markers and improve antioxidant markers in the peripheral blood of women with endometriosis.

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  • A study evaluated the impact of vitamins C and E on oxidative stress and pregnancy rates in women with endometriosis.
  • After 6 months of supplementation, significant reductions in oxidative stress markers (MDA and LOOHs) were observed in the vitamin group compared to placebo.
  • However, while there was a slightly higher pregnancy rate in the supplementation group, the difference was not statistically significant.
  • Overall, vitamins C and E lowered oxidative stress but did not improve pregnancy outcomes in these women.
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Objective: To evaluate the antioxidant intake and the lipoperoxidation status in plasma and peritoneal fluid of women with endometriosis.

Patients And Methods: The study was carried out in 48 women with endometriosis obtained at the Sterility Clinic from the National Institute of Perinatology. The antioxidant intake was evaluated applying the Questionnaire Assessment of Antioxidants and Retinol Intakes in Mexican women validated by the National Institute of Public Health.

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Objective: To evaluate the hydrogen peroxide ability to induce the synthesis of matrix metalloproteinase-9 (MMP-9) in an in vitro chorioamniotic membrane model.

Material And Methods: An experimental, transversal, analytic and prospective study was made. From amniotic membranes (n = 13) of term labour pregnant women chorionic and chorioamniotic explants were prepared; these were stimulated with hydrogen peroxide [200 mcM].

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Objective: Human pregnancy disorders such as preeclampsia are thought to involve variations in cytokine levels. It has been proposed that, in preeclamptic women, a balance favoring the Th1-type over the Th2-type cytokine profile determines local or systemic immunologic responses to pregnancy and that this may cause defective placental implantation and placental ischemia, which activate systemic endothelial cells. The purpose of this study was to determine whether cytokine expression differs in the maternal, choriodecidual, and fetal compartments, and between women with or without preeclampsia.

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